GE Mini Telemetry Operation And Maintenance Manual page 67

International Electrotechnical Commission (IEC) guidance and manufacturer's declaration regarding
electronic immunity
The unit is intended for use in the electronic environment specified below. The user of the unit should ensure that
it is used in such an environment.
Electromagnetic immunity
Immunity IEC 60601
Test Test Level
3 V
rms
Conducted RF
IEC 61000-4-6
150 KHz to 80
MHz
3 V/m
Radiated RF
80 MHz to 6
IEC 61000-4-3
GHz
3 V/m
IEC 60601-2-37 80 MHz to 6
GHz
NOTE 1: Portable and mobile equipment can affect medical electronic equipment.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
NOTE a: Field strengths from fixed transmitters such as base stations for radio, cellular/cordless telephones
and land mobile radios, amateur radios, AM and FM radio broadcasts and TV broadcasts cannot be predicted
© 2010 by General Electric Company. All rights reserved.
Compliance
Electromagnetic environment guidance
level
Portable and mobile RF communications equipment should be
used no closer to any part of the unit, including cables, than the
recommended separation distance calculated from the equation
applicable for the frequency of the transmitter.
Recommended separation distance
3V
d = 1 2 .
Radiated RF can affect the accuracy of in-bed-scale readings.
3 V/m
However, the in-bed-scale is not critical to the performance of the
unit (see Note 1, below).
3V/m
d = 1 2 .
d = 1 2 .
where P is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer and d is the
recommended separation distance in meters (m).
Field strengths for fixed RF transmitters as determined by an
electromagnetic site survey (see Note a) should be less than
the compliance level in each frequency range (see Note b on the
following page).
Interference may occur in the vicinity of equipment. Marked with the
following symbol:
P
P
= 26 MHz to 800 MHz
P
= 800 MHz to 2.5 GHz
2049809-001 Rev B
Appendix C
53